Hydraulic press for crank shafts and the like



April 14, 192s. 1,533,560

W. W. LINDER HYDRAULIC PRESS FOR CRANK SHAFTS AND THE LIKE Filed Sept 4.1923 2 Sheets-Sheet l April 14, 1925., 1,533,560

W. W. Ll NDER HYDRAULIC PRESS FOR CRANK SHAFTS AND THE LIKE Filed Sept.4, 1923 2 Sheets-Sheet 2 1 7 v 1 l' a 1 "W" o 19 i o I o o 0 l 7 'J.ull' \1" Jwuento'a w. w. 1121 der atfozuuql Patented Apr. 14, 1925.

UMTED stratus WILLIS W. LINDER, OF SALISBURY, NORTH CAROLINA.

HYDRAULIC rnnss roaonnnk snares ND THE LIKE.

Application filed September 4, 1323. Serial No. 860,535.

To aZZ ii /i011; it Hljlr/ concern.

Be it known that .l, ll' inms W. Linens, a citizen ojl the- UnitedStates, residing at Salisbury, in the county of Rowan and St: a of NorthCarolina, have invented certain new and useful .lniprovenients in .llydraulic Presses tor Crank Shafts and the like, of which the followingis a full, clear, and exact description. 1 i

The present invention relates to apparatus for removing or applyingpulleys, gears and the like to loom crankslu-ii ts, and has "for itsobject to provide such a. device which is simple in construction, andyet which is thoroughly reliable and etlirient in ope tion. lVhile theinvention is designed p marily for use in connection with looiushatting, it should be here noted thatthe same is equally well adaptedfor reii'ioving and applying bushings, collars, roller necks or otherelements requiring a tight fit Other objects and advantages of theinvention will be apparent from the following description when taken inconnection with the accompanying drawings, in which:

Figure 1 is a side elevation oi? the conr ple-te apparatus.

Figure 2 is a plan View thereof.

Figure 3 is an end view of the apparatus slightly enlarged, and

Figure 4 is horizontal section taken in line 4-4 of Figure 1.

Referring to the drawings more in detail, the numeral 1 indicates thelegs of a supporting frame or bed Which. are braced by the longitudinalside braces 2 and crossbars 3, Secured to the upper end of the legs 1are the main frame or body members 4 which form a track or guideway forthe crosshead 5. This crosshead is provided with sleeves 6 at theopposite ends thereof which adapts the crosshead for sliding movementalong the guide bars 4. Mounted on the crosshead 5 adjacent the sleeves6 thereof are pawls 7 which are pivoted for co-operation with notches 8in the upper sides of the bars 4. The adjacent ends of the bars 4 arerigidly connected by means of fixed crossheads 9 and 10, the formerbeing provided with a groove or notch 11 in alignment with notch 12 ofthe movable crosshead 5 for a purpose to be later described.

Mounted on one end of the frame is a fluid pressure cylinder 13 providedwith a piston and piston rod (not shown), to the latter of which issecured a plunger or rain 14, This piston is operated by hydraulicpressure,

and to this end I have provided a tank l5- jacent the base of thelegs 1. These pumps are operated through the medium ot' coir ncctingrods 19 WVlllCll are connrcterhby means o'teccentrlc straps 20 withtheecccir 'trics 21 mounted on shaft 22. Power is'applied to the shaft22 by means oi the hired and loosepulleys 23 and 24, on which is mounteda belt 23, the latter being con trolled in the usual manner by a beltshift 25.

Extending from the pumps 18 are pipes 26 and 27 which are coupledtogether at 28 to receive the upwardly extending pipe 29 which leads toa four-way valve'30. This valve is controlled by alever 31 to which isconnected a stop arm 32 having its opposite end extending through one ofthe legs 1 and provided with stops 33 and 34. Leading from the valve arepipes 35 and 36 connecting with opposite ends of the cylinder 13, while,pipe 37 leads from the valve 30 back to the tank 15. Suitable checkvalves 38 and 39 are placed in the pipe system, and a pressure gauge 40is connected with the cylinder 13 in the usual manner.

In the operation of the device the crosshead 5 is adjusted to a properdistance from the plunger 14 by means of the pawls 7, and the loomcrank-shaft or other piece of machinery A having a pulley or the like tobe removed is then placed lengthwise of the apparatus and rests intheinotches 11 and 12 of the fixed and movable crossheads 9 and 5,respectively, with the pulley in engagement with pins 41 which engagethe side of the crosshead 5 and are united by the lateral brace 42 whichhas its ends resting on the guide bars 4 as clearly shown in Figure 2.Valve lever 31 is now moved so as to open the passages from tank 15through conduit 17 pumps 18, conduits 27, 28, 29 and 35 to the adjacentend of the cylinder. Such position of the four-way valve will, ofcourse, connect pipe 36 with the return pipe 37 to the tank 15,permitting the liquid to eX- haust from that end of the cylinder'to thetank 15. The belt shifter 25 being operated to put the belt onto thefixed pulley 23, the pumps 18 are operated to force fluid under pressureinto the cylinder, thereby forcing out the ram 14 so as to engage theadjacent end of the shaft to be operated on and force the same free fromthe pulley or other element to which it is attached. By reversing thevalve it will be obvious that the ram li will be withdrawn.

When it is desired to place a pulley or gear Wheel on a shaft the latteris placed in the notches 11 and 12, as shown in Figure l; and in orderto prevent longitudinal movement of the shaft a plate 44 is placed inthe pocket 43 and engages the crank portionof the shaft. A pipe or cap45 which is closed at its outer end is placed over the end of the shaftA and engages the pulley or gear wheel which is to be forced on to theshaft. The fluid pressure is now turned on the apparatus and the plunger14 is forced into engagement with the pipe or cap 45 and thus pressesthe gear wheel into place on the shaft. It will be understood, ofcourse, that plate 4A is detachable and is merely placed in the pocket43 when the apparatus is to be used in forcing a gear Wheel or pulley onto a crank shaft.

From the foregoing description it will be seen that I have devised anexceedingly simple arrangement of hydraulic press and frame which may bereadily controlled by a single operator and which will save much of thetime now required in removing and applying pulleys and the like.

In accordance with the patent statutes, I have described what I nowbelieve to be the best embodiment of the invention, but I do not wish tobe understood thereby as limiting myself or the scope of the invention,as many changes and modifications may be made without departing from thespirit of the invention; all such I aim to include in the scope of theappended claim.

What I claim as new and desire to secure by Letters Patent is: I

In a hydraulic press, a pair of spaced, horizontal bars provided withnotches, a

fined and a movable crosshead mounted on plunger.

IVILLIS W. LINDER.

